KR20120099266A - Method of incorporating leg elastics in a pant-like disposable absorbent garment, and garment made thereby - Google Patents

Abstract

The present invention relates to a method of incorporating a leg elastic member into a pants-type disposable absorbent garment, and to a garment produced by the method. In certain embodiments, the method includes supplying elastomeric film laminate first and second body panel webs spaced apart from one another. The continuous first leg elastic member is attached to the first body panel web, and the continuous second leg elastic member is attached to the second body panel web. A continuous leg elastic covering web is attached to both the first body panel web and the second body panel web such that the first and second leg elastic members are interposed between the leg elastic covering web and each body panel web. In certain embodiments, the present invention may provide an efficient and process friendly technique for covering and securing leg elastic members to pants-type disposable garments employing elastomeric film laminates.

Description

FIELD OF THE INVENTION A method of incorporating a leg elastic material into a pants-type disposable absorbent garment, and a garment manufactured by the method.

People rely on disposable absorbent products, including articles such as adult incontinence products, urination pants, training pants and diapers in everyday life. Many manufacturers want to better meet the user's needs for these products. For example, there is a need for improved fit, discretion, and leakage prevention for many products. For certain products, such as adult incontinence underwear and nocturnal pants, it is important that the garment be as comfortable as possible in a "normal" undergarment to inspire an improved sense of normalcy for wearers suffering from incontinence or nocturnal enuresis. Do. Many existing pant-type, wear-absorbent garments currently on the market utilize a product chassis with a plurality of elastic thread interposed between two nonwoven fibrous layers. The strand extends around the body such that the elastic force is mainly extended around the waist of the wearer, as in the case of a conventional cloth material brief. While this design can provide good fit and leakage protection, there is room for further improvements in terms of providing a look and fit that is much more similar to "plain" cloth underwear. In many cases, it is also possible to interpose a leg elastic strand between the nonwoven fibrous layers.

One type of material that provides room for making the absorbent garment more "like underwear" is an elastomeric film laminate. Elastomer film laminates are generally elastomeric films sandwiched between two nonwoven fibrous layers. The film provides elastic properties similar to elastic threads but provides a smoother, more uniform appearance. Some products currently on the market use such elastomeric laminates, and the front and back body panels each consist of an elastomeric film laminate and are constructed of "three-piece" pants, which are connected to each other via an absorbent insert extending therebetween. To utilize. However, this design introduces difficulties in certain cases. It is often desirable to include additional elasticization around the leg openings. In some configurations, it may not be possible to simply interpose an additional leg elastic thread between two nonwoven layers, such as when the elastomer film laminate is a “prelaminated” sandwich of elastomer film between two nonwoven layers. . Instead, the leg elastic thread should be attached to the outer surface of the elastomeric film stack. In this case, it is usually necessary to provide an additional layer of material for sealing around the elastomeric thread and any associated adhesive to secure the elastomeric thread to the elastomeric film stack. Many efforts have been made to achieve this goal, but the results have been unsatisfactory. Thus, in certain cases, an improved method of securing leg elastics to the elastomeric film laminate body panels of disposable absorbent garments to simplify and improve the high speed manufacturing of such garments and, in certain cases, to some extent serve this purpose. I need a way.

In order to meet the unmet needs of the above-mentioned technical field, a novel method for the production of pants-type disposable garments and the garments produced thereby have been invented.

In one aspect, the invention relates to a method of incorporating a leg elastic member into a pants-type disposable absorbent garment. In a particular embodiment, the method includes feeding an elastomeric film laminate first body panel web and an elastomeric film laminate second body panel web, wherein both webs move in a machine direction and the first body panel web Is spaced apart from the second body panel web in the cross-machine direction, wherein the elastomeric film laminate first body panel web and the elastomeric film laminate second body panel web each comprise an elastomeric film layer and at least one nonwoven layer. The method may further comprise supplying a continuous first leg elastic member and a continuous second leg elastic member both moving in the machine direction. The method may further comprise attaching the first leg elastic member to the first body panel web and attaching the second leg elastic member to the second body panel web. The method may further comprise the step of feeding a continuous leg elastic coating web moving in the machine direction. The method includes a first body panel such that a first leg elastic member is interposed between the first body panel web and the leg elastic covering web and a second leg elastic member is interposed between the second body panel web and the leg elastic covering web. The method may further include attaching the leg elastic covering web to both the web and the second body panel web to form the composite web.

In another aspect, the present invention relates to a method of making a plurality of pants type disposable absorbent garments. In a particular embodiment, the method includes supplying an elastomeric film laminate first body panel web that defines and mechanically moves a waist edge extending in the machine direction and a leg edge extending in the machine direction. The method further includes the step of providing an elastomeric film laminate second body panel web defining and mechanically moving the waist edge extending in the machine direction and the leg edge extending in the machine direction, wherein the elastomeric film laminate is formed. The first body panel web and the elastomer film laminate The second body panel web may each comprise an elastomer film layer interposed between two nonwoven opposing layers. The method includes first and second bodies such that each leg edge of the body panel web is spaced apart from each other in the cross-machine direction by a first distance, and each waist edge of the body panel web is spaced apart from each other in the cross-machine direction by a second distance. The method may further include arranging the panel webs so that they do not overlap. The method may further comprise supplying a continuous first leg elastic member and a continuous second leg elastic member both moving in the machine direction. The method attaches the first leg elastic member to the first body panel web at least partially adjacent the leg edge of the first body panel web, and the second body panel at least partially adjacent the leg edge of the second body panel web. The method may further include attaching the second continuous leg elastic member to the web. The method further includes supplying a continuous leg elastic cladding web that moves in the machine direction and defines a width extending in the cross-machine direction between the first edge, the second edge, and the first edge and the second edge. The width of the covering web can be greater than the first distance and less than the second distance. The method may further comprise superimposing the leg elastic covering web over the first and second body panel webs. The method includes a first body panel web such that a first leg elastic member is interposed between the first body panel web and the leg elastic covering web and a second leg elastic member is interposed between the second body panel web and the leg elastic covering web. And attaching the leg elastic covering web to both sides of the second body panel web. The method may further comprise attaching the absorbent composite to the leg elastic coating web to form the composite garment web. The method includes folding a composite garment web along a centerline extending in a machine direction such that the first body panel web waist edge is in close contact with the second body panel web waist edge, a series of machine side spaced seam joints spaced apart in the machine direction. And attaching the first body panel web to the second body panel web along the cut and cutting the composite garment web at a series of machined spaced apart cutting positions to form a plurality of pants-type disposable absorbent garments. It may include.

In another aspect, the present invention relates to a pants type disposable absorbent garment. In certain embodiments, the garment defines a longitudinal direction and a lateral direction perpendicular to the longitudinal direction. The garment has a front region defining the front waist end edge, a back region defining the back waist end edge, and a crotch region extending longitudinally between the front and back regions. The crotch region defines two laterally opposed crotch side edges and the present garment defines a garment length that extends from the front waist end edge to the back waist end edge. The garment includes a front panel waist edge, a front panel leg edge spaced longitudinally inwardly from the front panel waist edge, and laterally opposed first and first longitudinally extending between the front panel waist edge and the front panel leg edge. 2 front panel comprising an elastomeric film laminate front panel defining a side edge. The garment includes a back panel waist edge, a back panel leg edge spaced longitudinally inwardly from the back panel waist edge, and laterally opposed first and first longitudinally extending between the back panel waist edge and the back panel leg edge. And further comprising an elastomeric film laminate back panel defining the two back panel side edges. The front panel is longitudinally spaced from the back panel. The garment further includes at least one front leg elastic member disposed adjacent the front panel leg edges and at least one back leg elastic member disposed adjacent the back panel leg edges. The garment extends between the front panel and the back panel so that a front leg elastic member is interposed between the leg elastic covering panel and the front panel, and a rear leg elastic member is interposed between the leg elastic covering panel and the back panel. And a leg elastic cladding panel connecting the back panel to each other. The length of the leg elastic covering panel is smaller than the length of the garment. The garment may further comprise an absorbent composite attached to the leg elastic covering panel and a pair of side seams connecting the front region to the back region to define a waist opening and a pair of leg openings.

In certain embodiments, the present invention provides an efficient and process friendly technique for coating and securing leg elastic members to pants-type disposable garments using elastomeric film laminates, particularly "prefabricated" or "prelaminated" elastomeric film laminates. Can be provided.

1 representatively illustrates a perspective view of one embodiment of a manufacturing process that incorporates the principles of the process aspects of the present invention.
1A representatively illustrates a cross-sectional view of the first body panel web of FIG. 1, taken along lines 1A-1A.
FIG. 2 is a top view of the composite web of the process embodiment shown in FIG. 1, with an adjacent view of the process indicated by square brackets “2”. FIG.
2A is a cross-sectional view of the process portion shown in FIG. 2, taken along line 2a-2a.
FIG. 3 is a top view of a composite web of a process similar to that shown in FIG. 1, showing an alternative embodiment of the process, but with an adjacent view of the process indicated by bracket “3”.
3A representatively illustrates the removal portion of the composite web shown in FIG. 3.
4 representatively illustrates a front perspective view of a disposable absorbent article incorporating the principles of the present invention.
5 is a disposable, incorporating principles of the present invention, showing the surface of the article facing toward the wearer's body upon wearing the article, as viewed in a longitudinally and transversely laid out state prior to engagement of the front and back waist regions. A plan view of the absorbent article is representatively shown.
6 is a cross-sectional view of the article of FIG. 5, taken along line 6-6.
7 is a cross-sectional view of the article of FIG. 5, taken along line 7-7.

In the context of this specification, each of the following terms or phrases includes the following meanings. Other terms are defined elsewhere in the specification.

"Attach" refers to the joining, adhering, bonding, connecting, etc. of two elements. If two elements are attached directly to one another or indirectly to one another, such as when each element is directly attached to an intermediate element, the two elements are considered attached.

"Join" refers to the joining, adhering, connecting, attaching, etc. of two elements. If two elements are joined directly to one another or indirectly to one another, such as when each element is directly joined to an intermediate element, the two elements are considered to be joined.

"Connect" refers to the joining, adhering, bonding, attaching, etc. of two elements. If two elements are connected directly to each other or indirectly to each other, such as when each element is directly connected to an intermediate element, the two elements are considered to be connected.

"Disposable" refers to an article designed to be discarded after limited use, rather than being recovered by laundering or other means for reuse.

"Placement", "place on" and various variations thereof are intended to mean that one element may be integrated with another element or that an element may be a separate structure that is joined to, joined together, or adjacent to another element. .

"Elastic", "elasticization", "elastic" means the physical properties of the material or composite that are about to return to their original size and shape after the forces causing deformation are removed.

"Elastomer" refers to a material or composite that can be stretched to at least 50% of the relaxation length and recovers at least 20% of elongation upon release of the applied force. The elastomeric material or composite may generally be stretched to at least 50% of the relaxation length, more preferably to at least 100%, even more preferably to at least 300%, upon release of the applied force. Recover at least 50% of elongation.

“Integration” is used to refer to the various parts of a single unitary element, not individual structures joined together, installed together, or arranged adjacently.

"Layer" used in the singular may have the dual meaning of a single element or a plurality of elements.

"Member" used in the singular may have the dual meaning of a single element or a plurality of elements.

These terms may be defined in other words in the remainder of the specification.

Hereinafter, various aspects and embodiments of the present invention will be described with reference to FIGS. 1 to 7. It should be noted that the embodiments shown in FIGS. 1-7 are merely representative examples of the process and garment aspects of the present invention. Although certain features of the invention are described and illustrated with respect to adult incontinence garments for illustrative purposes, various aspects and embodiments of the invention are suitable for use in disposable diapers, disposable swim pants, disposable training pants, disposable urination garments, and the like. Do. Unless otherwise stated, all length and width dimensions referred to herein are measured with the garment or web laid flat and fully unfolded before joining the front and back areas along side seams (for garment dimensions). It is regarded as the measured dimension. Furthermore, unless otherwise stated, if the length or width measurement depends on the measurement location (eg, the dimensions depend on where the wavy edge is measured due to the wavy edge), the length or The width measurement is the maximum length or width that can be measured for that feature.

In certain embodiments, the present invention relates to a technique for incorporating a leg elastic member into a pants-type disposable absorbent garment and a method of manufacturing a plurality of pants-type disposable absorbent garments employing such a technique. In a particular embodiment, as representatively shown in FIGS. 1 and 2, the method 100 includes an elastomeric film laminate first body panel web 110 (eg, via a roll feeder 115) and (eg, through a roll feeder 115). Feeding the elastomeric film laminate second body panel web 120 (via roll feeder 125), both webs moving in the machine direction 102. The first body panel web 110 is spaced apart from the second body panel web 120 in the cross machine direction 103. Each of the elastomeric film laminate first body panel web 110 and the elastomeric film laminate second body panel web 120 includes an elastomeric film layer 105 and at least one nonwoven layer 106. Preferably, the elastomeric film layer 105 is sandwiched between two nonwoven layers 106 and 106. Other elastomeric film laminates may also be used, but are hereby incorporated by reference to US Patent Application Publication No. US2008 /, both of which are hereby incorporated by reference to Kimberly-Clark Worldwide to the extent that they do not conflict with this specification. 0095978 and US2009 / 0197041 provide examples of techniques suitable for forming elastomeric film laminates suitable for use in the present invention.

In certain embodiments, the elastomeric film laminate first body panel web 110 defines a waist edge 111 extending in the machine direction 102 and a leg edge 112 extending in the machine direction 102. Similarly, the elastomer film stack second body panel web 120 of a particular embodiment defines a waist edge 121 extending in the machine direction 102 and a leg edge 122 extending in the machine direction 102. . The method is characterized in that the leg edges 112/122 of each of the two webs are spaced apart from each other by the first distance 130 in the cross-machine direction 103 and the waist edges 111/121 of each of the two webs are cross-machine direction 103 ) May further include disposing the first and second body panel webs 110/120 so as not to overlap each other by a second distance 132.

In a particular embodiment, the method further includes supplying a continuous first leg elastic member 140 and a continuous second leg elastic member 142, both of which are elastic legs 140/142. Move in the machine direction 102. Each leg elastic member 140/142 may comprise one ribbon, strand, or thread (or the like) elastic material, or two or three or more ribbons (as shown in the embodiment of FIGS. 1 and 2). , Strand, or threaded elastic material. The method further includes attaching the first leg elastic member 140 to the first body panel web 110 and attaching the second leg elastic member 142 to the second body panel web 120. Preferably, as representatively shown in FIGS. 1 and 2, the first leg elastic member 140 is at least partially adjacent to the leg edge 112 of the first body panel web 110. And a second continuous leg elastic member 142 is attached to the second body panel web 120 at least partially adjacent the leg edge 122 of the second body panel web 120. . In a particular embodiment, the first leg elastic member 140 extends in the machine direction 102 along a straight path, and the second leg elastic member 142 extends in the machine direction 102 along a non-linear path. In another embodiment, as representatively shown in FIGS. 1 and 2, both the first leg elastic member 140 and the second leg elastic member 142 both extend along a non-linear path in the machine direction 102. . Elastic ribbons, strands, threads and the like suitable for use in disposable absorbent garments are known in the art, an example of which is the tradename LYCRA elastic filament available from Dupont Corporation. In certain embodiments, it may be desirable to reduce or eliminate the ability of elastic strands to impart compaction to selected areas of the absorbent garment. For example, where it is desirable to reduce or eliminate the dense capacity of the elastic strands in the lateral central region of the garment (eg, on the absorbent composite 50), for example, the front leg elastics thinner 141 and the back leg elastics The elastic strands may be cut by the shredder 143, so that the elastic strands may “snap back” by a selected distance such that the elastic strands do not cross the lateral central region of the garment. This configuration is shown in Figures 1 and 3-6.

The method further includes feeding a continuous leg elastic covering web 150 moving in the machine direction 102. Leg elastic covering web 150 may include any suitable nonwoven material, such as, for example, spunbond, spunbond-meltblown laminates, bonded-carded webs, and the like. In certain embodiments, such as representatively shown in FIGS. 1 and 2, the leg elastic covering web 150 includes a first edge 151, a second edge 153, and a first edge 151 and a second edge. A width 155 extending in the cross-machine direction between the lines 153 is defined, wherein the width 155 of the covering web is greater than the first distance 130 and less than the second distance 132. After superimposing the leg elastic covering web 150 on the upper side (or lower side) of the first and second body panel webs 110/120, the method includes covering the first body panel web 110 and the leg elastics. The first body such that the first leg elastic member 140 is interposed between the webs 150 and the second leg elastic member 142 is interposed between the second body panel web 120 and the leg elastic covering web 150. And attaching the leg elastic covering web 150 to both the panel web 110 and the second body panel web 120 to form the composite web 160. The composite web defines a composite web width 162 extending in the cross-machine direction 103, which is the width between the transverse outermost both edges of the composite processing web assembly. In certain embodiments, the composite web width 162 is greater than the cross-machine width 155 of the leg elastic cladding web 150.

In a particular embodiment, the method provides a first waistband web 170 (eg, via roll feeder 171) and a second waistband web 180 (eg, via roll feeder 181). And attaching the first waistband web 170 to the first body panel 110 (eg at attachment station 172) and the second body panel 120 (eg at attachment station 182). ) May further comprise attaching the second waistband web 180. The waistband web can be inherently elastomeric (such as by use of an elastomeric film laminate material). Alternatively, waist elastic strands may be attached to the front and / or back waistband webs to impart elasticity to the webs. For example, waistband webs are not inherently elastomers, but elastomers are attached by attaching elastomeric strands (e.g., by interposing elastic strands between two nonwoven webs or by enclosing elastic strands in one "C-folded" nonwoven web). Can be Each first elastic waistband web defines a proximal edge 173 and a distal edge 174, and each second waistband web defines a proximal edge 183 and distal edge 184. In embodiments that include a waistband web, the width 162 of the composite web 160 may include a first waistband web distal edge 174 and a second waistband web distal edge 184 as representatively shown in FIG. 2. Is the width extending in the cross machine direction between

In certain embodiments the method further includes removing the portion 152 of the leg elastic covering web 150. In addition, the method removes a portion 128 of the second body panel web 120, removes a portion 118 of the first body panel web 110, or a portion of the second body panel web 120. It may further comprise removing both 128 and the portion 118 of the first body panel web 110. Removing the portion 128 of the second body panel web 120 defines a series of back leg opening edges 144 spaced apart in the machine direction 102. Similarly, removing the portion 118 of the first body panel web 110 defines a series of front leg opening edges 146 spaced apart in the machine direction 102. In the embodiment shown representatively in FIG. 1, the removal portion 154 of the composite web 160 includes the removal portion 152 of the cladding web 150, the removal portion 118 of the first body panel web 110 and the first portion. It can be seen that the removal portion 128 of the two-body panel web 120 is included. In addition or alternatively to removing portions 118/128 of the front and / or back body panel webs, certain embodiments of the method define a series of crotch edges 148 spaced apart in the machine direction 102. Removing the portion 156 of the absorbent composite 50 (discussed below) in order to do so. This embodiment is representatively shown in FIG. 3. In this embodiment, the removal portion 154 of the composite web 160 (typically shown in FIG. 3A) is the removal portion 152 of the covering web 150, the removal portion of the first body panel web 110 ( 118, the removal portion 128 of the second body panel web 120 and the removal portion 156 of the absorbent composite 50. Removal of the various portions may be accomplished by known techniques, such as by way of example using the cutting device 158.

The method of certain embodiments may further comprise providing a supply 190 of the absorbent composite 50. The method may further comprise attaching the absorbent composite 50 at intervals (eg, at the cutting and rotating attachment station 191) to the leg elastic covering web 150. In this embodiment, a series of absorbent composites 50, leg elastic covering webs 150, front and back body panel webs 110 and 120, leg elastic members 140 and 142 and optional waistband webs 170 , 180 together define the composite garment web 160. The method includes the first body panel web waist edge 111 being in close contact with the second body panel web waist edge 121 and / or the first waistband web distal edge 174 being the second waistband web distal edge 184. ) Folding the composite garment web 160 along the centerline 104 extending in the machine direction 102 (eg, at the folding station 164), in close contact with). The method of a particular embodiment further comprises attaching the first body panel web 110 to the second body panel web 120 along a series of garment side seam joints 66 spaced apart in the machine direction 102. do. The method further includes cutting the composite garment web 160 at a series of cutting positions spaced apart in the machine direction 102 to form a plurality of pants-type disposable absorbent garment 20. The seaming and cutting operations may be performed separately in separate stations, or may be performed in a single seaming and cutting station 166 as representatively shown in FIG.

In another aspect the invention relates to a pants type disposable absorbent garment. 4-7, the garment 20 defines a longitudinal direction 22 and a lateral direction 23 perpendicular to the longitudinal direction 22. As used in the description of various embodiments of the garment aspect of the present invention, the terms "longitudinal" and "lateral" are defined by the longitudinal axis 24 and the lateral axis 25 shown in FIGS. It has the same general meaning. The longitudinal axis 24 is located in the plane of the article when the article is laid flat and fully unfolded before the front and back panels are engaged, which bisects the body of the upright wearer into the left and right half of the body when the article is worn. Generally parallel to the vertical plane. The lateral axis 25 is located in the plane of the article and is generally perpendicular to the longitudinal axis 24. The garment 20 has a front region 30 defining a front waist end edge 32, a back region 34 defining a back waist end edge 36 and a front region 30 and a back region 34. It has a crotch region 38 disposed longitudinally therebetween. The crotch region 38 defines two laterally opposite crotch side edges 39. This garment 20 defines a garment length 21 extending from the front waist end edge 32 to the back waist end edge 36.

The garment 20 has a front panel waist edge 42, a front panel leg edge 44 spaced longitudinally inwardly from the front panel waist edge 42, and a front panel waist edge 42 and a front panel leg edge ( An elastomeric film laminate front panel 40 defining laterally opposed first and second front panel side edges 46, 48 extending longitudinally therebetween. The garment 20 also includes a back panel waist edge 43, a back panel leg edge 45 spaced longitudinally inwardly from the back panel waist edge 43, and a back panel waist edge 43 and a back panel leg edge ( An elastomeric film laminate back panel 41 defining laterally opposed first and second back panel side edges 47, 49 extending longitudinally between the layers 45. As used to describe the garment embodiment of the present specification, the phrase " longitudinal inward " means to run longitudinally towards the central lateral axis 25. As shown in FIG. The front panel 40 is longitudinally spaced apart from the back panel 41. Examples of suitable elastomeric film laminates have been reviewed above in connection with the method embodiments of the present invention. In a preferred embodiment, both the elastomeric film laminate front panel 40 and the elastomeric film laminate back panel 41 are interposed between two nonwoven facing layers as representatively shown in FIG. 1A in connection with the method embodiment of the present invention. It includes an interposing elastomer film layer.

The garment includes at least one front leg elastic member 70 disposed adjacent the front panel leg edge 44 and at least one back leg elastic member 75 disposed adjacent the rear panel leg edge 45. . Examples of suitable leg elastic members have been reviewed above in connection with the method aspect of the present invention. In certain embodiments, the back leg elastic member 75 and / or the front leg elastic member 70 extend laterally across the entire garment width. In another embodiment, as representatively shown in FIGS. 4 and 5, the back leg elastic member 75 may be formed, for example, on the first and second back leg elastic members 76 disposed on opposite sides of the absorbent composite 50. And a pair of back leg elastic members, such as 77). Similarly, the front leg elastic member 70 includes a pair of front leg elastic members, such as the first and second front leg elastic members 71, 72, for example, disposed on opposite sides of the absorbent composite 50. can do. In a preferred embodiment, as representatively shown in FIGS. 4 and 5, each back leg elastic member 75 may comprise a plurality of elastomeric threads and / or each front leg elastic member 70 may have a plurality of. It may include an elastomeric thread.

The garment also includes a leg elastic cladding panel 60 extending between the front panel 40 and the back panel 41 to connect the two panels to each other. Preferably (but optionally), cladding panel 60 may comprise a non-elastomeric nonwoven material, such as spunbond, spunbond laminate, bonded-carded web, and the like, examples of which are known in the art. The front leg elastic member 70 is interposed between the leg elastic member covering panel 60 and the front panel 40, and the back leg elastic member 75 is between the leg elastic member covering panel 60 and the back panel 41. Intervened in The leg elastic covering panel defines a length 61 extending in the longitudinal direction 22. In certain embodiments, the length 61 of the leg elastic covering panel 60 is less than the length 21 of the garment. For example, in certain embodiments the length 61 of the leg elastic covering panel 60 is at most 80%, more particularly at most 70%, and even more particularly at most 60% of the garment length 21. As just mentioned, making the leg elastic cladding panel length 61 relatively short compared to the garment length 21 can improve manufacturing convenience and reduce cost, while simultaneously reducing the leg elastic member 70 /. 75) can still provide the desired function of coating and securing. In another embodiment, the leg elastic cladding panel 60 defines a laterally extending cladding panel front region edge 62 and a laterally extending cladding panel back region edge 63. The cladding panel front area edge 62 and the cladding panel back area edge 63 are inwardly of the front panel waist edge 42 and the back panel waist edge 43 by at least 2 cm, or more particularly at least 5 cm, respectively. Are arranged longitudinally.

In certain embodiments, the absorbent composite 50 is attached to the leg elastic covering panel 60. The absorbent composite 50 includes a liquid impermeable barrier layer 52 defining a width 53, an absorbent core 54, and a liquid permeable liner 55 including a liquid absorbent material such as cellulosic fluff and / or a superabsorbent polymer. ) And the crotch elastic member 56. The leg elastic covering panel 60 defines a maximum front width 64 and a maximum back width 65. In a particular embodiment, the maximum front width 64 and maximum back width 65 of the leg elastic covering panel 60 are both greater than the width 53 of the barrier layer. For example, in one embodiment, the maximum front width 64 and the maximum back width 65 of the leg elastic covering panel 60 are both at least twice the width 53 of the barrier layer. In one embodiment, the length 51 of the absorbent composite 50 is at least 10% longer than the length 61 of the leg elastic covering panel. Additionally or alternatively, the front width 64 and / or back width 65 of the leg elastic cladding panel 60 is at least 50% or more, or more particularly at least, greater than the width 53 of the liquid impermeable layer. Greater than 100% In a particular embodiment, as representatively shown in FIG. 5, the leg elastic covering panel defines a generally hourglass shaped portion.

In certain embodiments, the front region 30 further comprises a front elastomer waistband 80 attached to the front panel 40 adjacent the front panel waist edge 42 and / or the back region 34 is rear It further comprises a back elastomer waistband 81 attached to the back panel 41 adjacent the panel waist edge 43. A pair of side seams 84, 84 connect the front region 30 to the back region 34 such that the garment 20 defines a waist opening 27 and a pair of leg openings 28. The side seams may be permanent but tearable, for example using means such as adhesive, thermal bonding or ultrasonic bonding, or may be more easily releaseable and refastenable, for example using mechanical fastening elements.

The details of the foregoing embodiments provided for purposes of illustration should not be construed as limiting the scope of the invention. Although only a few embodiments of the invention have been described in detail, those skilled in the art will recognize that many modifications to the example embodiments are possible without substantially departing from the novel teachings and advantages of the invention. Accordingly, all such changes are intended to be included within the scope of this invention, which is defined by the following claims and their equivalents. Furthermore, while many embodiments may be considered to have failed to achieve all the advantages of some embodiments, particularly preferred embodiments, the lack of particular advantages is not necessarily construed to mean that such embodiments are beyond the scope of the present invention. No wonder it is natural.

Claims (20)

As a method of incorporating a leg elastic member into a pants type disposable absorbent garment,
Elastomer Film Laminates First Body Panel Web and Elastomer Film Laminates Second Body Panel Web—The two webs move in the machine direction, the first body panel web is spaced cross machine direction from the second body panel web, and the elastomer film Supplying the laminate first body panel web and the elastomeric film laminate second body panel web each comprising an elastomeric film layer and at least one nonwoven layer;
Supplying a continuous first leg elastic member and a second continuous leg elastic member, the two leg elastic members moving in the machine direction;
Attaching the first leg elastic member to the first body panel web and attaching the second leg elastic member to the second body panel web;
Supplying a continuous leg elastic sheath web moving in the machine direction; And
The first body panel web and the second such that the first leg elastic member is interposed between the first body panel web and the leg elastic covering web, and the second leg elastic member is interposed between the second body panel web and the leg elastic covering web. Attaching the leg elastic cladding web to both the body panel webs to form a composite web
≪ / RTI > The method of claim 1,
Both the elastomeric film laminate first body panel web and the elastomeric film laminate second body panel web each comprise an elastomeric film layer interposed between two nonwoven facing layers. The method according to claim 1 or 2,
The first leg elastic member extends in the machine direction in a straight path and the second leg elastic member extends in the machine direction in a non-linear path. 4. The method according to any one of claims 1 to 3,
And the cross-machine width of the composite web is greater than the cross-machine width of the leg elastic cladding web. 5. The method according to any one of claims 1 to 4,
Removing the portion of the leg elastic covering web and the portion of the second body panel web to define a series of back leg opening edges spaced in the machine direction. The method according to any one of claims 1 to 5,
Removing the portion of the leg elastic covering web and the portion of the first body panel web to define a series of machined spaced front leg opening edges. 7. The method according to any one of claims 1 to 6,
Removing the portion of the absorbent composite to define a series of crotch edges spaced apart in the machine direction. As a method of manufacturing a plurality of pants type disposable absorbent garments,
Supplying an elastomeric film laminate first body panel web defining and mechanically moving the waist edge extending in the machine direction and the leg edge extending in the machine direction;
Elastomer Film Laminates Second Body Panel Web-Elastomer Film Laminates First Body Panel Web and Elastomer Film Laminates Second Body Supplying the panel webs each including an elastomeric film layer sandwiched between two nonwoven opposing layers;
Overlap the first and second body panel webs such that each leg edge of the body panel web is spaced apart from each other in the cross-machine direction by a first distance and each waist edge of the body panel web is spaced apart from each other in the cross-machine direction by a second distance. Not placing;
Supplying a continuous first leg elastic member and a second continuous leg elastic member, the two leg elastic members moving in the machine direction;
Attaching the first leg elastic member to the first body panel web at least partially adjacent the leg edge of the first body panel web, and applying the first leg elastic member to the second body panel web at least partially adjacent the leg edge of the second body panel web. Attaching two consecutive leg elastic members;
Continuous leg elastomeric coated web defining a width extending in the machine direction between the first edge, the second edge and the first edge and the second edge, the width of the coated web being greater than the first distance. Supplying less than the second distance;
Superimposing the leg elastic covering web over the first and second body panel webs;
The first body panel web and the second such that the first leg elastic member is interposed between the first body panel web and the leg elastic covering web, and the second leg elastic member is interposed between the second body panel web and the leg elastic covering web. Attaching the leg elastic covering web to both the body panel webs;
Attaching the absorbent composite to the leg elastic covering web to form the composite garment web;
Folding the composite garment web along a centerline extending machine direction such that the first body panel web waist edge is in close contact with the second body panel web waist edge;
Attaching the first body panel web to the second body panel web along a series of machined spaced garment side seam joints; And
Cutting the composite garment web at a series of machined spaced apart locations to form a plurality of pants-type disposable absorbent garments
≪ / RTI > 9. The method of claim 8,
The first leg elastic member extends in the machine direction in a straight path and the second leg elastic member extends in the machine direction in a non-linear path. 10. The method according to claim 8 or 9,
Supplying a first waistband web and a second waistband web, and attaching the first waistband web to the first body panel and attaching the second waistband web to the second body panel. Including as. 11. The method according to any one of claims 8 to 10,
Removing the portion of the leg elastic covering web and the portion of the second body panel web to define a series of back leg opening edges spaced in the machine direction. The method according to any one of claims 8 to 11,
Removing the portion of the leg elastic covering web and the portion of the first body panel web to define a series of machined spaced front leg opening edges. 13. The method according to any one of claims 8 to 12,
Removing the portion of the absorbent composite to define a series of crotch edges spaced apart in the machine direction. A pants type disposable absorbent garment defining a longitudinal direction and a lateral direction perpendicular to the longitudinal direction,
The garment has a front region defining the front waist end edge, a back region defining the back waist end edge and a crotch region extending longitudinally between the front region and the back region, the crotch region being two laterally opposed sides. Having a crotch side edge, the garment defines a garment length extending from the front waist end edge to the back waist end edge,
The garment is
Front panel waist edge, front panel leg edge spaced longitudinally inwardly from the front panel waist edge, and laterally opposed first and second front panel side edges extending longitudinally between the front panel waist edge and the front panel leg edge. An elastomeric film laminate front panel defining a;
Back panel waist edge, back panel leg edge spaced longitudinally inwardly from the back panel waist edge, and laterally opposed first and second back panel side edges extending longitudinally between the back panel waist edge and the back panel leg edge An elastomeric film laminate back panel defining a front panel spaced longitudinally away from the back panel;
At least one front leg elastic member disposed adjacent the front panel leg edges and at least one back leg elastic member disposed adjacent the back panel leg edges;
A front leg elastic member is interposed between the leg elastic cladding panel and the front panel, and the front panel and the back panel extend between the front panel and the back panel so that a back leg elastic member is interposed between the leg elastic cladding panel and the back panel. A leg elastic cladding panel connected, the length of which is less than the length of the garment;
An absorbent composite material attached to the leg elastic covering panel; And
A pair of side seams that connect the frontal area to the rear area to define a waist opening and a pair of leg openings
Pants-type disposable absorbent garment comprising a. 15. The method of claim 14,
Both the elastomeric film laminate front panel and the elastomeric film laminate back panel each comprise an elastomeric film layer interposed between two nonwoven opposing layers. 16. The method according to claim 14 or 15,
A pants-type disposable absorbent garment further comprising a pair of back leg elastic members disposed on opposite sides of the absorbent composite. The method according to any one of claims 14 to 16,
A pants-type disposable absorbent garment further comprising a pair of front leg elastic members disposed on opposite sides of the absorbent composite. 18. The method according to any one of claims 14 to 17,
The front region includes a front elastomeric waistband attached to the front panel adjacent the front panel waist edges, and the back region includes a bottom elastomeric waistband attached to the back panel adjacent the back panel waist edges. Comment. The method according to any one of claims 14 to 18,
The absorbent composite includes a liquid impermeable barrier layer defining a width, the leg elastic coating layer defining a maximum front width and a maximum back width, and the maximum front width and maximum back width of the leg elastic coating layer are both the width of the barrier layer. Larger pants-type disposable absorbent garment. The method according to any one of claims 14 to 19,
The leg elastic cladding panel defines a cladding panel front region edge and a cladding panel back region edge, the cladding panel front region edge is longitudinally disposed inward of the front panel waist edge, and the cladding panel back region edge is formed of the back panel waist edge. Pants type disposable absorbent garment disposed longitudinally inwardly.

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